The Black and Whites were built until WWII, where at that time the high command of the Japanese military took over most of these estates. Following the war, Singaporeans abandoned the Black and Whites, believing they would bring you bad luck if inhabited. Fortunately over the last 15 years or so, residents recognize the historical & design significance of these homes and their relationship to Singapore, and have renovated these amazing architectural gems.
I fell in love with the Black and White style when I had the opportunity to live in Singapore in 1997. I found the open floor plan to be so contemporary for its day, but how timeless it has become, dictating the way we live in our homes in the 21st century. I love the simple & natural materials that most homeowners use to furnish the interiors, incorporating silk and wood details, with a blend of Asian art & accessories.
For more info on the Black and Whites houses of Singapore, pick up Julian Davison's book - Black and White: The Singapore House 1898-1941. The Amazon link can be found below...
http://www.amazon.com/Black-White-Singapore-House-1898-1941/dp/981052739X/ref=sr_1_1?ie=UTF8&s=books&qid=1266865604&sr=1-1